My Little Sister's Shower Service
I opened a search window at once. I needed information on all of this strangeness desperately.
The words Chaerin had let slip at the hospital, the women's stares I kept feeling, the streets filled with nothing but women — every fragment drifted through my mind without locking into a single picture.
I typed a few words into the search bar.
Men. Women. Sex ratio. South Korea. The moment I hit enter, I sucked in a breath. Goosebumps rose over my entire body.
"…Where the hell am I?"
This was not the Earth I knew.
According to what I found, South Korea was an extreme female-majority society with a male-to-female ratio of 1:20. Men were classified as national protected assets and placed under special management beneath a powerful law called the Male Protection Act.
The near-total absence of men on the streets had not been chance. They were precious bodies, and common sense dictated that they spend most of their time at home or in secure facilities.
Even a brief search turned up news of women kidnapping and raping men. Only now did Chaerin's warning at the hospital — to be careful of women — land with full force against my skin.
Most shocking of all was this: the men of this world were born with low sexual desire. Some even felt pain upon erection. They tended, by instinct, to recoil from a woman's naked body.
The women, by contrast, carried a libido equal to — or greater than — the men of the Earth I knew.
Everything began to make sense. The burning looks the nurses had given me at the hospital. The way women on the street had stared at me like treasure. Even the taxi auntie's pitiful eagerness to strike up a conversation.
I had thought it was simple kindness toward someone who was sick. I had been completely wrong.
It was the hunger of women who had spent their whole lives craving men, spilling out in every glance and gesture. The women were so aroused they could barely stand it — and yet men were scarce, and the few who existed would not give them sex.
I searched for sexual processing as well. For men, it said, semen building up in the body was harmful to health, so women periodically discharged it for them. In the past, family members or close acquaintances had often handled it. These days, however, going through professional institutions was the norm.
Chaerin's claim that a female family member would provide sexual processing was not entirely wrong. But I could also see that her offer was out of step with the present.
"……This is insane."
A laugh burst out of me before I could stop it. My heart was racing. I had thought being dropped into a strange Earth was a crisis. It was an opportunity.
For a lifelong virgin who, in his previous life, had never properly held a woman's hand, this was a paradise handed down by God.
Decent looks. A massive cock. A muscular body and staggering stamina. And a libido that put the men of this world to shame.
With that alone, I would be free to fuck as much as I wanted in this world.
The original owner of this body definitely didn't just leave all that sitting idle.
The mountain of women's contacts stacked on the phone was proof. From the message history, the body's previous owner had treated the women rather coldly — and still they clung to him without end.
"I'm finally getting laid…!"
Just the happy fantasy of sex was enough to make my lower body swell heavy and thick. That was when it happened.
Click.
Chaerin came out of the bathroom. She had already wiped the water from her hands and face with a towel — a pure, clean image utterly at odds with the filthy fantasies that had just filled my head.
I forced my excitement down and decided to test this world's common sense.
"Thanks for the sexual processing."
At my words, Chaerin's shoulders gave a little twitch. She looked at me with startled eyes, then answered as if it were nothing.
"Well, it's a hassle, but I'm a girl, so what can you do."
Then her cheeks flushed. The color climbed all the way to her earlobes, and she fidgeted, speaking in a small voice.
"…Want me to do it with my mouth next?"
That single line set the thread of my reason swaying dangerously.
There was no reason to refuse my twin little sister offering oral sexual processing. I nodded, and Chaerin hurried out of the room as if to hide her embarrassment, looking for something to do.
I wanted to grab her right then and there, but I decided to shower first. Too much precum was smeared on my cock, and after being discharged from the hospital, I wanted to wash.
Chaerin must have showered for a long time earlier — the bathroom was still thick with hot steam. Inside that cramped space, I laid out plans for what came next.
Should I contact the women in my phone and meet them? Or find a club — this world had to have those too — and go? My head was full of nothing but women and sex.
Knock knock.
Then Chaerin rapped on the bathroom door.
"Hey. Want me to attend you in the shower?"
Standing under the running water, I froze for a moment. I doubted my own ears.
Shower attendance? I had only ever heard that phrase in historical dramas. In modern society — and from the mouth of my twin little sister?
How far gone was this world? Or rather — how far toward perfection?
I barely reined in the excitement boiling up inside me and asked in the most casual voice I could manage.
"Do family members usually attend a man's shower too?"
Silence held outside the door for a beat. One second. Two. Chaerin let a tiny pause pass before she answered.
"…Yeah. Of course. Men are precious, so women taking care of them in every little way is just common sense."
Common sense. The word slammed through my skull. What a glorious, perfect common sense. The women of this world might as well have existed for men.
An amusing guess brushed through my mind. A gender-reversed world. Women with overwhelming libido and scarce men. And a twin older brother who had lost his memory.
Was Chaerin using this situation to feed her own desire?
But what did that matter? To the me of right now, it made no difference at all.
Rising lust was numbing my reason. I took the doorknob in a wet hand and pulled it open.
The moment the door swung wide, Chaerin stood there — barely covering her breasts and pussy with a single white towel.
The narrow bathroom, which had no bathtub, filled completely the instant both of us stepped inside. Steam fogged the mirror; the scents of shampoo and soap hung in the air — and over all of it, Chaerin's sweet woman-smell packed the space dense and thick.
Her bare white shoulders and slender collarbones, the smooth lines of her legs left uncovered by the towel, drove straight into my vision without mercy. The full outline of her breasts hanging precariously from the edge of the towel, and the secret place one could only imagine below — all of it made me hard.
Chaerin flushed under my blatant stare but did not look away. Instead she met my eyes boldly and snatched the shower puff from my hand.
"Don't just stand there staring. Turn around. I'll wash you."
I caught the excitement hidden under her snippy tone easily enough. I gave a short laugh and turned my back without protest.
Soft foam and a small, warm hand began to stroke across my broad back.
Slick, slick.
The shower puff in Chaerin's little hand scrubbed over my wide back. Body-wash foam rose thick and covered me in a slick, slippery feel.
Neither of us said a word. I didn't know what there was to say. The fact that my twin little sister stood right behind me, naked under nothing but a towel, was so fucking hot I could barely stand it.
Even at a glance her breasts looked like D-cups. No — E-cups? I had never properly seen a woman's chest before, so I couldn't tell. Maybe even F.
"Front too."
Judging the back finished, Chaerin spoke shortly. I turned slowly to face her.
"Ah, you…?"
Chaerin swallowed a breath at the unexpected sight. In that cramped space, right in front of her, my cock stood fully erect, head lifted as if it might burst.
Thud.
Wet with water and radiating a savage presence, my cock stabbed straight into the towel covering Chaerin's stomach. I almost felt the skin of her belly through the fabric.
"I-It got hard again…?"
Chaerin fidgeted her fingers, her expression flushed with excitement. She looked back and forth between the cock prodding her stomach and my face, and lightly rubbed her thighs together.
I looked down at her and said quietly,
"For my cock — not the shower puff. Use your hand."
It was for me, yes — but also for Chaerin, who clearly wanted to touch it.
"Wash it carefully."
Chaerin bit her lip as if hesitating for a moment, then seemed to make up her mind and dropped the shower puff from her hand. With one hand she clung precariously to the slipping towel; with the other she reached for my cock.
Her small, soft hand wrapped around me.
She worked foam over my cock and began to wash it with little kneading motions. Holding the towel with one hand left her posture awkward — and that only made it hotter.
Knead, knead. Slip, slip.
Her small hand rode up and down the shaft and carefully caressed the head. Having given me a handjob earlier, her movements grew more practiced by the second.
The brief handjob ended. Chaerin slid her hand lower and gently washed my two heavy balls as well. After working my cock for a long while, she rinsed away every last bit of foam, unable to hide the regret on her face.
"I'll wash your feet too."
As if reluctant to take her hand off my cock, she slowly crouched and knelt at my feet. Then she began carefully washing between my toes. That obedient posture was deeply satisfying.
After washing my feet for some time, Chaerin absently lifted her head.
"Ah…!"
Her gaze locked dead on my cock. She stared at it with eyes that held something close to awe.
Looking down at her, I reminded her of what she had said earlier.
"You said you'd do it with your mouth. Can you now?"
Chaerin did not answer in words. Instead she nodded, bright with pleasure.
And slowly, she opened her mouth.
Between her moist lips, neat white teeth and a red tongue came into view.